<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=9; IE=8; IE=7; IE=EDGE">
    <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />
    <title>数据核对</title>
    <!-- 引入样式 -->
    <link rel="stylesheet" href="/css/elementui.css">
    <link rel="stylesheet" href="/plugins/font-awesome/css/font-awesome.min.css">
    <link rel="stylesheet" href="/css/style.css">
</head>
<script src="/js/jquery-3.3.1.js"></script>
<script src="/js/vue.js"></script>
<script src="/js/axios.js"></script>
<script src="/js/elementui.js"></script>
<body>
<div id="app">
<!--<div>-->
    <!--<p>单个excel文件上传</p>-->
    <!--<form action="/excel/import.do" method="post" enctype="multipart/form-data">-->
        <!--<input type="file" name="excelFile"/>-->
        <!--<input type="submit" value="上传"/>-->
    <!--</form>-->
<!--</div>-->

    <el-upload
            class="upload-demo"
            ref="upload"
            action="doUpload"
            :limit="1"
            :file-list="fileList"
            :before-upload="beforeUpload">
        <el-button slot="trigger" size="small" type="primary">选取文件</el-button>
        <a href="./static/moban.xlsx" rel="external nofollow" download="模板"><el-button size="small" type="success">下载模板</el-button></a>
        <!-- <el-button style="margin-left: 10px;" size="small" type="success" @click="submitUpload">上传到服务器</el-button> -->
        <div slot="tip" class="el-upload__tip">只能上传excel文件，且不超过5MB</div>
        <div slot="tip" class="el-upload-list__item-name">{{fileName}}</div>
    </el-upload>
    <span slot="footer" class="dialog-footer">
 <el-button @click="visible = false">取消</el-button>
 <el-button type="primary" @click="submitUpload()">确定</el-button>
</span>
</div>
</body>

<script>
    new Vue({
        el:'#app',
        data() {
            return {
                fileList: []
            };
        },
        methods: {
            beforeUpload(file){
                console.log(file,'文件');
                this.files = file;
                const extension = file.name.split('.')[1] === 'xls'
                const extension2 = file.name.split('.')[1] === 'xlsx'
                const isLt2M = file.size / 1024 / 1024 < 5
                if (!extension && !extension2) {
                    this.$message.warning('上传模板只能是 xls、xlsx格式!')
                    return
                }
                if (!isLt2M) {
                    this.$message.warning('上传模板大小不能超过 5MB!')
                    return
                }
                this.fileName = file.name;
                return false // 返回false不会自动上传
            },
            submitUpload() {
                console.log('上传'+this.files.name)
                if(this.fileName == ""){
                    this.$message.warning('请选择要上传的文件！')
                    return false
                }
                let fileFormData = new FormData();
                fileFormData.append('file', this.files, this.fileName);//filename是键，file是值，就是要传的文件，test.zip是要传的文件名
                let requestConfig = {
                    headers: {
                        'Content-Type': 'multipart/form-data'
                    },
                }
                this.$http.post(`/excel/import.do`, fileFormData, requestConfig).then((res) => {
                    if (data && data.code === 0) {
                        this.$message({
                            message: '操作成功',
                            type: 'success',
                            duration: 1500,
                            onClose: () => {
                                this.visible = false
                                this.$emit('refreshDataList')
                            }
                        })
                    } else {
                        this.$message.error(data.msg)
                    }
                })
            }

        }


    });
</script>
</html>